Werner's theory and conductivity, AgNO3 tests

28 questions on Werner's theory and conductivity, AgNO3 tests from the Coordination Compounds chapter: 6 NEET level, 11 JEE Main, 11 JEE Advanced. Each one opens with its answer and solution.

• According to Werner's theory, the primary valence of a metal in a coordination compound corresponds to its NEET level
• In Werner's theory the secondary valence of the central metal ion is identical with its NEET level
• Excess aqueous AgNO3 is added to a solution of [Co(NH3)5Cl]Cl2. The number of moles of AgCl precipitated per mole of the complex is NEET level
• The number of ions furnished per formula unit by K4[Fe(CN)6] in water (complete dissociation) is NEET level
• Which of the following is non-conducting (a non-electrolyte) in aqueous solution? NEET level
• The coordination number of cobalt in [Co(en)2Cl2]Cl is (en = ethane-1,2-diamine, a bidentate ligand) NEET level
• The compound PtCl4.4NH3 (Pt coordination number 6) gives 2 mol of AgCl per mole with excess AgNO3. Its correct formulation is JEE Main level
• A solution contains 0.0200 mol of [Co(NH3)5Cl]Cl2 and 0.0300 mol of [Co(NH3)4Cl2]Cl. Excess AgNO3 is added and only the free (ionic) chloride is precipitated. F... JEE Main level
• Assertion: [Co(NH3)3Cl3] gives no precipitate with AgNO3 and has negligible molar conductivity in solution. Reason: all three chloride ions are bonded to cobalt... JEE Main level
• Match the species in Column I with the number of ions per formula unit in Column II (complete dissociation). Column I: P [Cu(NH3)4]SO4; Q K2[Ni(CN)4]; R [Co(NH3... JEE Main level
• Which of the following statements about Werner's theory are correct? One or more options may be correct. JEE Main level
• Which of the following give a precipitate of AgCl immediately on adding excess aqueous AgNO3? One or more options may be correct. JEE Main level
• At the same molar concentration, which is the correct order of increasing molar conductivity of [Co(NH3)6]Cl3 (I), [Co(NH3)5Cl]Cl2 (II), [Co(NH3)4Cl2]Cl (III) a... JEE Main level
• A complex CoCl3.xNH3 (Co coordination number 6) liberates 0.20 mol of AgCl when 0.10 mol of it is treated with excess AgNO3. The value of x is JEE Main level
• Violet CrCl3.6H2O gives 3 mol AgCl per mole with excess AgNO3 and its coordination number is 6. A green isomer of the same composition gives 2 mol AgCl per mole... JEE Main level
• The oxidation state and coordination number of platinum in [Pt(en)2Cl2]Cl2 are, respectively (en = bidentate neutral ligand) JEE Main level
• The number of ions produced per formula unit when K2[PtCl6] dissolves in water (complete dissociation) is JEE Main level
• The green complex PtCl4.3NH3 (Pt coordination number 6) gives 1 mol of AgCl per mole with excess AgNO3. Let a be the number of ions per formula unit in water an... JEE Advanced level
• The salt NiCl2.6NH3 gives 2 mol of AgCl per mole with excess AgNO3. Assuming octahedral coordination (coordination number 6) and using the spin-only formula, th... JEE Advanced level
• Treat CN- as a strong-field ligand (low spin) and use the spin-only formula. Which statements about K3[Fe(CN)6] and K4[Fe(CN)6] are correct? JEE Advanced level
• The compound CoBr(SO4).5NH3 (Co coordination number 6) gives no precipitate with excess AgNO3 but a white precipitate with BaCl2. Which statement is correct? JEE Advanced level
• A complex PtCl4.nNH3 has Pt coordination number 6 and furnishes four ions per formula unit in water. Let m be the moles of AgCl obtained per mole of complex wit... JEE Advanced level
• A sample of 2.665 g of green CrCl3.6H2O (molar mass 266.5 g/mol, Cr coordination number 6) gives 1.435 g of AgCl (molar mass 143.5 g/mol) with excess AgNO3. The... JEE Advanced level
• 0.0200 mol of CoCl3.5NH3 (Co coordination number 6) gives 0.0400 mol of AgCl with excess AgNO3. The compound is dissolved to make a 0.0200 molal aqueous solutio... JEE Advanced level
• A mixture contains 0.0150 mol of CoCl3.5NH3 and 0.0100 mol of CoCl3.4NH3 (Co coordination number 6 in both). The mass of AgCl (143.5 g/mol) precipitated by exce... JEE Advanced level
• For the series CoCl3.nNH3 with Co coordination number 6 (n = 3, 4, 5, 6), which statements are correct? One or more options may be correct. JEE Advanced level
• For [Pt(en)2Cl2]Cl2 (en = neutral bidentate ligand; octahedral cation), which statements are correct? One or more options may be correct. JEE Advanced level
• Two square planar Pt(II) compounds (Pt coordination number 4) have the formulae PtCl2.3NH3 (Y) and PtCl2.4NH3 (Z). With excess AgNO3, Y gives 1 mol of AgCl per ... JEE Advanced level